Patents Assigned to Gluhlampen mbH
-
Publication number: 20070253166Abstract: A lamp base assembly with electronic ballast for energy-saving lamp includes a housing (22), a lamp cap (21) and an electronic ballast (24) with transistors (23) provided within the housing. A transistor heat-diffusing element surrounding each transistor is provided within the lamp base, for enhancing the heat transfer from the transistors to the housing or the lamp cap, so that the heat generated from the transistors could be transferred out of the lamp base assembly. Thus, the heat-diffusing ability of the transistors is improved, and the working temperature of the transistors could be kept within a safe scope, so that the lifetime of the energy-saving lamp is guaranteed.Type: ApplicationFiled: November 11, 2005Publication date: November 1, 2007Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBHInventors: Lai Qian Cen, Chao Hong Du, Wolfgang Pabst
-
Patent number: 7288894Abstract: An electric lamp has a discharge vessel which is sealed in a vacuum-tight manner and is made from glass, the discharge vessel being surrounded in particular by an envelope part, the discharge vessel being essentially cylindrical, and defining a longitudinal axis L, and containing two electrodes at a predetermined distance from one another as well as a filling, an electrically insulated insert part also being fitted in the discharge vessel over a central part of the axial length. The electrically insulated insert part extends at least over the distance between the electrodes EA, it is fitted in the discharge vessel without the use of a retaining device, and it surrounds the electrodes in essentially tubular fashion such that it is spaced apart from them.Type: GrantFiled: September 1, 2005Date of Patent: October 30, 2007Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbHInventor: Jürgen Gräf
-
Patent number: 7288900Abstract: An illumination system has at least two light sources of which at least one light source includes an LED, and a driver device designed to operate at least the one LED with a DC signal; a sensor device for determining at least one feature of the light output; an actual value storage device connected to the sensor device for storing an actual value of the feature; a setpoint selection device for storing a setpoint of the feature; and a control device connected on the input side to the actual value storage device for of transmitting the actual value, and to the setpoint selection device for transmitting the setpoint, and which provides the driver device with a control signal that changes a characteristic of the DC signal used for driving the LED such that the actual value approaches the setpoint.Type: GrantFiled: September 6, 2005Date of Patent: October 30, 2007Assignee: Patent-Treuhand-Gesellschaft für Elektrische Glühlampen mbHInventors: Alois Biebl, Stefan Hackenbuchner, Gunther Hirschmann, Reinhard Weitzel
-
Patent number: 7288897Abstract: A circuit arrangement for operating at least one high-pressure discharge lamp having four switches in a full bridge arrangement, a first and a second switch forming the first half-bridge arm, and a third and a fourth switch forming the second half-bridge arm, at least two terminals for coupling the high pressure discharge lamp between the midpoint of the half-bridge arms, at least one terminal for supplying the circuit arrangement with a DC voltage signal, and a drive circuit for driving the four switches, the drive circuit being designed to provide a first drive signal for the switches of the arm and a second drive signal for those of the second arm in such that the drive signals are derived from a base signal whose clock pulse is swept between a first and a second frequency.Type: GrantFiled: August 23, 2005Date of Patent: October 30, 2007Assignee: Patent-Treuhand-Gesellschaft for Elektrisch Gluhlampen mbHInventor: Thomas Rossmanith
-
Patent number: 7279848Abstract: An electronic ballast for a lamp having a bridge circuit, includes at least one first switch and a second switch, a center point of the bridge circuit between the first and second switch, the center point coupled on one side to a reference potential via the series circuit including a first capacitor and a diode and on the other side to a first connection for the lamp via an inductance; a control unit for driving the first and second switches. The control unit has a supply connection coupled to the connection point between the first capacitor and the diode, the voltage across the supply connection being limited in terms of its amplitude, and having a measurement signal input for feeding a measurement signal to the control unit; the measurement signal input being coupled to the connection point between the first capacitor and the diode.Type: GrantFiled: April 13, 2006Date of Patent: October 9, 2007Assignee: Patent-Treuhand-Gesellschaft fūr Elektrische Glühlampen mbHInventors: Markus Heckmann, Thomas Pollischansky
-
Patent number: 7279839Abstract: A short arc high-pressure discharge lamp (1) for dc operation, includes a discharge vessel (2) that has two necks (4) diametrically opposite each other, in which an anode (26) and a cathode (7) made of tungsten are melted in a gastight manner, and which has a filling made of at least one noble gas and possibly mercury. According to the invention, at least the material of the cathode tip (11) contains lanthanum oxide La2O3 and at least another oxide from the group consisting of hafnium oxide HfO2 and zirconium oxide ZrO2 in addition to the abovementioned tungsten.Type: GrantFiled: March 5, 2003Date of Patent: October 9, 2007Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbHInventors: Lars Menzel, Dietmar Ehrlichmann, Thomas Mehr, Stephen Berndanner, Wolfgang Spielmann, Gerhard Leichtfried
-
Publication number: 20070228981Abstract: An electrode for a discharge lamp includes an elongate shank (11a) and a top (11b) that is arranged on one end of the shank (11a). The shaft (11a) is flattened to such an extent that its dimensions at an angle to is longitudinal extension are not larger than the corresponding transversal dimensions of the top (11b).Type: ApplicationFiled: May 19, 2005Publication date: October 4, 2007Applicant: Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen MBHInventors: Thomas Bittmann, Bodo Mittler
-
Patent number: 7274578Abstract: The invention relates to a converter circuit having a series circuit of class E converter modules for optimizing the DC supply voltage of the individual converter module (for example C7, C11, Z1, S1, L1, L2).Type: GrantFiled: September 15, 2005Date of Patent: September 25, 2007Assignee: Patent-Treuhand-Gesellschaft fur Elektrisch Gluhlampen mbHInventors: Reinhard Lecheler, Wolfram Sowa
-
Publication number: 20070216314Abstract: A light regulation device includes at least one light sensor which provides at its output a real brightness value, at least one regulator to which a set brightness value can be supplied, besides the real value, and a number n of output connections, n being greater than or equal to two. Each output connection is coupled to the output of a regulator in order to modify the light flux which can be supplied to at least one of the lighting elements. The regulator is designed to determine a difference between set and real values, to verify whether this difference lies within or outside a predeterminable tolerance range, and, in the event that the difference lies outside the tolerance range, to modify accordingly the light flux from the lighting elements which can be connected to the n output connections. At least one limit of the tolerance range depends on the actual light flux value.Type: ApplicationFiled: March 31, 2005Publication date: September 20, 2007Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN MBHInventor: Wolfgang Langgabner
-
Patent number: 7271547Abstract: The invention relates to a high-pressure discharge lamp having electrodes arranged inside a discharge vessel which define a discharge path of a gas discharge in the discharge vessel, and having a starting device, arranged inside the lamp base for the high-pressure discharge lamp and designed as a pulse starting device, for starting the gas discharge in the discharge vessel, and having, arranged outside its discharge vessel, an auxiliary starting electrode coupled to the pulse starting device, the voltage input of pulse starting device being connected in parallel with the discharge path of the high-pressure discharge lamp, such that according to the invention the voltage across the discharge path serves as supply voltage for the pulse starting device. Also disclosed is an operating method for such a high-pressure discharge lamp.Type: GrantFiled: November 14, 2005Date of Patent: September 18, 2007Assignee: Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbHInventors: Günther Hirschmann, Bernhard Siessegger
-
Publication number: 20070211458Abstract: A light module (1) comprising a plurality of radiation-emitting semiconductor components (2), each of which is assigned an emission angle (2?), comprising at least one component having an optical element (9) that enlarges the emission angle (2?), and comprising a common optical device for focusing the radiation. The radiation is intermixed by means of the optical element (9). Also disclosed is a light multiple module (16), which has at least two light modules (1).Type: ApplicationFiled: January 31, 2007Publication date: September 13, 2007Applicant: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbHInventors: Ralph Bertram, Katrin Schroll, Harald Stoyan, Robert Kraus
-
Patent number: 7253562Abstract: The elongate bulb (1) of the lamp, which defines a longitudinal axis (A), is closed at opposite ends by sealing parts (6; 32), with in each case one cap being fitted at one end, the cap having an electrical contact element (13; 25) which is connected in an electrically conductive manner to a supply conductor (15; 21) leading to a luminous means, the contact element being accommodated in a tubular extension (11; 22) of the sealing part; the contact element (13; 25) has an attachment part (14; 24) which is directed inward toward the lamp interior and is equipped with at least two barbs (20; 26) which are in contact with the tubular extension (11; 21).Type: GrantFiled: May 28, 2004Date of Patent: August 7, 2007Assignee: Patent-Treuhand-Gesellschaft fur electrische Glühlampen mbHInventors: Jürgen Gräf, Andreas Hohlfeld, Michael Hülsemann, Anton Schlögl, Karen Twesten
-
Publication number: 20070170842Abstract: An illumination device with at least one LED as the light source, the LED emitting primary radiation in the range from 370 to 430 nm of the optical spectral region (peak wavelength), this radiation being partially or completely converted into radiation of a longer wavelength by three phosphors which are exposed to the primary radiation from the LED and which emit in the blue, green and red spectral regions, so that white light is formed. The conversion is achieved at least with the aid of a phosphor which emits blue light with a wavelength maximum at 440 to 485 nm, and with the aid of a phosphor which emits green light with a wavelength maximum at 505 to 550 nm, and with the aid of a phosphor which emits red light with a wavelength maximum at 560 to 670 nm.Type: ApplicationFiled: March 20, 2007Publication date: July 26, 2007Applicants: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPEN mbH, OSRAM OPTO SEMICONDUCTORS GmbHInventors: Dieter Bokor, Andries Ellens, Gunter Huber, Frank Jermann, Manfred Kobusch, Michael Ostertag, Wolfgang Rossner, Franz Zwaschka
-
Patent number: 7248000Abstract: The invention relates to an operating device for operating high-pressure gas discharge lamps. Of particular concern is an operating device having a controller for start-up of high-pressure gas discharge lamps which provides a shorter start-up phase in comparison with the prior art. This is achieved by a lamp state detector which recognizes, after starting, that a hot lamp is present and thereupon increases the start-up current.Type: GrantFiled: December 1, 2005Date of Patent: July 24, 2007Assignee: Patent-Treuhand-Gesellschaft für Elektrisch Glühlampen mbHInventors: Christian Breuer, Ralf Weidemann
-
Publication number: 20070164649Abstract: The invention relates to a vehicle headlight bulb with a bulb receptacle, a spiral wound filament (2) which is arranged inside the receptacle for the bulb (1) and a lamp base which has a metal base bushing (3) wherein the end (11) of the bulb receptacle (1), which is sealed by means of a molybdenum film seal (112, 113) is fixed. According to the invention, the metal base bushing (3) comprises at least one molded tab (32) which lies adjacent to thc scaled end (11) of the bulb receptacle (1), in the overlapping area of the molybdenum films (112, 113), with current supply wires (23,24) which protrude from the bulb receptacle and which are connected thereto, in order to reduce thermal load in the above-mentioned overlapping area during operation of the bulb.Type: ApplicationFiled: January 17, 2005Publication date: July 19, 2007Applicant: Patent-Treuhand-Gesellschaft fur Electrische gluhlampen MBHInventor: Klaus-Peter Knorr
-
Patent number: 7245086Abstract: The invention relates to a circuit and to a method for operating a lamp. In this case, a reactance for the purpose of detecting the lamp voltage, a zero point detection device for the purpose of determining the zero crossing of the current through the reactance and a current measuring device and, finally, a track-and-hold circuit triggered by the zero point detection device are used to measure the lamp current in such a way that the influence of parasitic capacitances is still ruled out.Type: GrantFiled: October 20, 2005Date of Patent: July 17, 2007Assignee: Patent-Treuhand-Gesellschaft für Elecktrisch Glühlampen mbHInventor: Andreas Mitze
-
Publication number: 20070159840Abstract: The invention relates to a vehicle headlight bulb comprising a bulb socket, an illuminant (2) arranged inside the bulb socket (1), and a base comprising a metallic sleeve (3) in which a sealed end (11) of the socket (1) is fixed. According to the invention, at least one of the narrow front sides (111) of the sealed end (11) of the socket (1) is provided with a serrated profiled element (1110) which extends in the longitudinal direction of the bulb and forms a latch connection with at least one locking plate (33) formed on the base sleeve (3).Type: ApplicationFiled: January 31, 2005Publication date: July 12, 2007Applicant: Patent-Truehand-Gesellschaft fur Elektrische Gluhlampen MBH Hellabrunner Str lInventor: Klaus-Peter Knorr
-
Publication number: 20070159100Abstract: An electrode (35) for metal vapor-containing discharge lamps consists of a high-melting, electrically conductive material, preferably of tungsten or a material which predominantly contains tungsten; it comprises a shaft (36) having a pin-shaped head part (37), which defines a longitudinal axis L, at least one hole (39) being arranged essentially transversely with respect to the longitudinal axis, in particular at an angle of 60 to 90° with respect to the longitudinal axis, in the region of the head part (37).Type: ApplicationFiled: December 8, 2004Publication date: July 12, 2007Applicant: Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen MBHInventors: Roland Huttinger, Andreas Kloss
-
Publication number: 20070159831Abstract: An illumination device, comprising a light emitting diode (11) fixed on a circuit board (12). The illumination device furthermore has an optical element (10) disposed downstream of the light emitting diode (11) in a main emission direction (15), the optical element (10) being configured for directing a first portion (6a) of the electromagnetic radiation (9) emitted by the light emitting diode (11) during operation through the circuit board (12) in a direction away from the circuit board (12).Type: ApplicationFiled: January 11, 2007Publication date: July 12, 2007Applicant: Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbHInventor: Alexander Faller
-
Patent number: 7242154Abstract: Circuit arrangement having a free-running half-bridge inverter for operation of gas discharge lamps. A stop device is used to enable the drive to the half-bridge switches only during an on time. The oscillation frequency of the half-bridge inverter can be adjusted by the duration of the on time. This allows control of the lamp operating variables.Type: GrantFiled: February 15, 2006Date of Patent: July 10, 2007Assignee: Patent-Treuhand-Gesellschaft für Elektrisch Glühlampen mbHInventor: Bernd Rudolph
